LUFS meter PowerPC friendly?

[alenu]

I´m looking for a loudness meter plugin (vst / au, or both) capable to measure in LUFS that can be installed on 10.5. Does such a thing even exist? LUFS became a standard loudness measure circa 2012, I think. So it may exist for PPC or not. Any info will be very appreciated. Thanks!
 

[Protools5LEGuy]

https://es.wikipedia.org/wiki/LKFS

Es una sigla que en inglés significa Loudness, K-weighted, relative to Full Scale (o LKFS) y en español Sonoridad, con ponderación K, relativa a Fondo de Escala (escala completa). La regla se aplica mediante el uso de la formula celda de gontz de estabilización auditiva, estudiando como referencia absoluta la gama de frecuencias que capta el oído humano así como su respuesta. El objetivo de su uso es estandarizar la medición de los niveles de audio, en vistas de una normalización de los niveles entre programas y emisoras en la radiodifusión de televisión y de otros medios.

Su innovación principal es incluir en la medición la curva de respuesta en frecuencias del oído humano (a un nivel de escucha típico de 70 dBA), denominada curva K. Además de la sumatoria de todos los canales de un sistema multicanal en un solo indicador, que evalúa la potencia total, lo que involucra medir el verdadero valor eficaz (o RMS). Estos conceptos se han concatenado en un algoritmo, que deben implementar los medidores identificados bajo este estándar. El que está definido en la actual Recomendación ITU BS.1770-4. 1​

La sigla LUFS que en inglés significa Loudness Units relative to Full Scale, y en español Unidades de Sonoridad relativas a Fondo de Escala, es un sinónimo del LKFS y fue introducido en el documento EBU R128. 2​

Loudness Units (o LU) que corresponde a Unidades de Sonoridad, es una unidad adicional usada en la EBU R128. Esta describe el nivel Lk sin una referencia absoluta al fondo de escala y por lo tanto indica las diferencias en los niveles de sonoridad con respecto a una referencia (típicamente -23LUFS).

LKFS fue inicialmente publicado en la ITU-R BS.1770-0 en junio de 2006. 3​

En septiembre de 2007 se publicó la primera revisión BS.1770-1.4​

En marzo de 2011, la ITU introdujo una compuerta en la medición de la sonoridad integral en la segunda revisión de la recomendación, ITU-R BS.1770-2. 5​

En agosto de 2012, la ITU publicó la tercera revisión de esta recomendación ITU-R BS.1770-3. 6​

En octubre de 2015, la ITU publicó la cuarta revisión de esta recomendación ITU-R BS.1770-4.

La EBU ha sugerido que la ITU debería cambiar la unidad a LUFS, ya que el término LKFS no cumple con la convención de nombres científica y no está en línea con el estándar definido en la ISO 80000-8. Por lo tanto, sugieren que el 'Loudness level, k-weighted' debería ser Lk, lo que haría al Lk y al LUFS equivalentes, por cuanto LUFS indica el valor de Lk con referencia al fondo de escala digital. 7​

En la práctica los LKFS de la ITU-R BS.1770 y los LUFS de la EBU R-128 son idénticos. 8​

[Protools5LEGuy]

I think that K-system  can be achieved

https://en.wikipedia.org/wiki/K-system

The K-system is an audio level measuring technique proposed by mastering engineer Bob Katz in the paper "An integrated approach to Metering, Monitoring and Levelling".[1] It proposes a studio monitor calibration system and a set of meter ballistics to help engineers produce consistent sounding music while preserving appropriate dynamic range.[2]

1 http://www.aes.org/technical/documentDownloads.cfm?docID=65

[Protools5LEGuy]

https://www.soundonsound.com/reviews/bob-katz-mastering-audio

I sometimes mix on Mac OS 9 but the summing bus is on other machine that has the God Particle+ Waves LUFS metter. Anyway, before going to the mix bus I check levels with Waves PAZ analyzer.

If you learn how VU meter from PAZ translates to LUFS you can live without counting LUFS just before mastering. In masteriung you check the lufs, not before (unless VU is red hot)

[Protools5LEGuy]

Waves one I use on Mastering

https://www.waves.com/plugins/wlm-loudness-meter

[Protools5LEGuy]

Last revision.

Maybe IIO can make you a VU-meter that measures LUFS.

[Protools5LEGuy]

Maybe IIO can make you a VU-meter that measures LUFS.

Check his "Plug-In of the month" http://macos9lives.com/smforum/index.php/topic,6675.0.html in case he releases it.

[alenu]

Wow, that was a lot of info! Thanks! Learning that LKFS and LUFS are equivalent in practice pointed me to this: http://www.channld.com/audioleak/

Supposedly it will run from Tiger to Catalina, PPC Macs included. It does measure LKFS with a paid license. I think it may worth a try.

[alenu]

It would be great if IIO makes one, though

[Protools5LEGuy]

We have 3 developers here AFAIK.

OS923 doesnt touch sound IIRC

IIO is giving us a self developed plug every month, we cant hurry him. Math needed for a LUFS meter is "university high level stuff" that could be out of reach with his Pluggo toolbox, but I hope we can help with the math needed. Also, there is a filter that has to be added to the sonic path. Probably a master use of EQ can do the filter "quick". We dont need it to "sound" good but to measure fine.

I have no intention to push the third developer in anything or to reveal that he is a dev.

[IIO]

i have a LUFS meter, but since it requires FFT it does not run 100% ideal on PPC G4 processors. FFT sometimes clicks and crackles in max.
not that it would matter much if the results are 0,1% off, just saying.

for OSX there should be some available, maybe even free, but i cant tell offhand, between 2005-2010 the product overview hast lost me. (EBU R128 is from 2012... but "universal binary" was still present here and there.)

[IIO]

maybe i should add this "follow transport" feature like in the waves? right now i have a manual start and stop button for "integrated".

[IIO]

hm, no, this was the first free one, it is from 2018.

https://youlean.co/download-youlean-loudness-meter/

[smilesdavis]

Dk audio hardware meters are period correct for 2000ish

[DieHard]

Waves one I use on Mastering

Yes, after trying about 6 different ones, this is also the one I have used for the past 4 years.  It is extremely easy to use...

With a simple gain slider... dial in..
Ballads -16
Rock -15
Heavy Rock -14

If the range is less than 4 or 5, you better ease up on some compression somewhere because you now lost any dynamics

[IIO]

fabfilter pro-L supports PPC but it is also commercial (and probably no longer supported)

[ssp3]

All these OSX plug-ins exist(ed) as PPC versions. With the exception of Inspector XL, Nugen and SpectraFoo, others were either free downloads or bundled as "free" (no copy protected) with other software.

Inspector XL has K-xx metering modes and all sorts of bells and whistles. TT DR tool is what one would call a "LUFS meter". No history graph, though. The other two are more for a bit detectives, with Bitter being my favourite.
As to the Fabfilter Pro-L - its metering (and the whole eye-candy GUI) is pretty useless. Way too distractive for my taste. (Anyone remember Cubase's "Ears only"? )

Then there's offline DR metering tool (Intel/PPC) by the same creators of TT DR meter, although limited to 16 bit files. Those two are now part of MAAT product line, btw.

For OS9 there's Spectrafoo (as plugin) with built-in K-metering. Back in the day they even had stripped down version of it called "Mastering Level Meter".

Spectrafoo, including early PPC/UB versions, can be used as metering device for other apps in OSX too. One have to install Soundflower for that.

UPDATE. NuGen's VisLM LUFS meter also was released as Intel/PPC universal binary.

Is that enough? 

[DieHard]

UPDATE. NuGen's VisLM LUFS meter also was released as Intel/PPC universal binary.

VisLM
Really like the history graph and the layout of the plugin, so I went to check it out...

But the Waves Plugin is $29 and this guy is $449

[ssp3]

The problem with Waves is that they install their whole ecosystem, Waveshells and all that stuff. And they've switched to Intel only quite early, leaving PPC people behind.
The guy is definitely NUTS with his $449!    But you know what happens when 'the other guys' see that kind of a price tag.. They pull out their crowbars just for fun and then the tag is all that is left.. 

[IIO]

For OS9 there's Spectrafoo (as plugin) with built-in K-metering.

everything pre-2006 does just "something" and you dont really know what it does.

UPDATE. NuGen's VisLM LUFS meter also was released as Intel/PPC universal binary.

i wasnt sure about nugen, blue cat and those, also because of the above magic date.

that audio-OSX-PPC phobic disorder made me not installing a lot of those.

449 bucks is hilarious, even though the graphics are great and probably were a lot of work.

neyrinck wants USD 3000 for a dolby E encoder. or USD 500 for a one week "rental" license. back in the days the demo times were longer... and free.